serial:blackfin: rename Blackfin serial driver to bfin_uart.c

bfin_5xx.c is not a general name for all Blackfin chips.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 4dcb37b..a9b307f 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -722,7 +722,7 @@
 	  Add support for the built-in UARTs on the Blackfin.
 
 	  To compile this driver as a module, choose M here: the
-	  module will be called bfin_5xx.
+	  module is named bfin_uart.ko.
 
 config SERIAL_BFIN_CONSOLE
 	bool "Console on Blackfin serial port"